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ConnectionPoolLeakageTest.java
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ConnectionPoolLeakageTest.java
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/**
* Copyright (C) 2015 Red Hat, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fabric8.kubernetes.client.okhttp;
import io.fabric8.kubernetes.client.http.AsyncBody;
import io.fabric8.kubernetes.client.http.HttpClient;
import io.fabric8.kubernetes.client.http.HttpResponse;
import io.fabric8.mockwebserver.MockWebServer;
import io.fabric8.mockwebserver.http.MockResponse;
import okhttp3.ConnectionPool;
import okhttp3.Protocol;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import java.util.Arrays;
import java.util.Collections;
import java.util.concurrent.TimeUnit;
import static org.assertj.core.api.Assertions.assertThat;
class ConnectionPoolLeakageTest {
private MockWebServer server;
private ConnectionPool connectionPool;
private OkHttpClientBuilderImpl clientBuilder;
@BeforeEach
void setUp() {
server = new MockWebServer();
final char[] chars = new char[10485760];
Arrays.fill(chars, '1');
server.enqueue(new MockResponse().setResponseCode(200).setChunkedBody(new String(chars), 1024));
connectionPool = new ConnectionPool(10, 100, TimeUnit.SECONDS);
clientBuilder = new OkHttpClientFactory().newBuilder();
clientBuilder.getBuilder().connectionPool(connectionPool);
}
@AfterEach
void tearDown() {
server.shutdown();
connectionPool.evictAll();
}
@ParameterizedTest(name = "with protocol {0}")
@DisplayName("consumeBytes should not leak connections")
@ValueSource(strings = { "h2_prior_knowledge", "http/1.1" })
void consumeBytes(String protocol) throws Exception {
final Protocol p = Protocol.get(protocol);
server.setProtocols(Collections.singletonList(io.fabric8.mockwebserver.vertx.Protocol.get(p.toString())));
server.start();
clientBuilder.getBuilder().protocols(Collections.singletonList(p));
try (HttpClient httpClient = clientBuilder.build()) {
final HttpResponse<AsyncBody> asyncBodyResponse = httpClient.consumeBytes(
httpClient.newHttpRequestBuilder().uri(server.url("/").toString()).build(),
(value, asyncBody) -> {
asyncBody.consume();
})
.get(10L, TimeUnit.SECONDS);
assertThat(activeConnections()).isEqualTo(1);
asyncBodyResponse.body().consume();
asyncBodyResponse.body().done().get(10L, TimeUnit.SECONDS);
assertThat(activeConnections()).isZero();
}
}
private int activeConnections() {
return connectionPool.connectionCount() - connectionPool.idleConnectionCount();
}
}